We are pleased to be able to offer for sale a newly manufactured USGI spec operating rod spring. Our springs are manufactured in the USA using 17-7 stainless steel wire (ASTM A313) on state of the art CNC spring winding machines. After being formed our springs then undergo a heat treatment process which sets the springs to condition CH-900. This extra step (that many manufacturers skip) increases the ultimate tensile strength of the spring by over 21%. The heat treatment process also increases the yield strength of the spring by over 37%.
- Ultimate tensile strength is the maximum stress that a material can withstand while being stretched or pulled before the diameter of the spring wire begins to decrease.
- Yield strength is defined as the stress at which a material begins to deform plastically and will not return to its original form.
Our M1 Garand operating rod spring has the following parameters:
- A 5lb weight compresses our spring to 17.1"
- A 16lb weight compresses our spring to 12.2"
(Click Graph to enlarge)
If your operating rod spring is too strong or too weak then the rifle will have stoppages and other failures. The majority of problems that new shooters have with the M1 Garand can be traced to the operating rod spring. Replacing your 50+ year old spring is good insurance against malfunctions.
Our operating rod spring comes with a lifetime warranty. If you ever wear out or break our spring from normal use contact us and we'll send you a new spring. Made in the USA
Customer Reviews
8 Item(s)
- Failure to cycle - fixed with new op-spring Review by Mark
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Quality - fixed the issue Review by Mike
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Quality - Top quality Review by 2sheds
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Quality - Painless replacement. Review by AFJuvat
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Quality - Quality Spring. Review by Terry
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Quality - Rifle functions flawlessly now. Good product. Review by Eric Thomsen
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Quality - nice replacement Review by Oscar Andrew
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Quality - Took the Garand out shooting today and it performed like a dream Review by Joseph MacGillivray
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Quality
8 Item(s)